RSBMIm going for more of a peeping Tom in the bushes confronted by the girls father - a scuffle breaks out and the suspect has a knife.
Could this be why AM wore overly large apparel with big empty bags, so he could camouflage what his hands were doing?
And if you're right, could AM have reacted with such psychotic fury when Mr. Brink confronted him, because he knew if the Brinks 'told on him' his life would be over?
IMO